Wrench.



No. 802,860. PATENTED 00T. 17, 1905. J. B.. PATTY.

WRENCH.

APPLIGATION FILED DE0,5.1904.

` w m/5355 y 5 /mMf/L/m/P f. 7 Jo/m/ fw. P rrr: Q cw@ 5) 0 I PAUlMNlJOHN R. PATlY, OF ST. PAUL, MINNESOTA.

WRENCH.

Specification of Letters Patent.

Patented Oct. 17, 1905.

Application filed December 5, 19011. Serial No. 235,436.

T0 all whom it Hw/y @0n/cern:

Be it known that l, JOHN R. PATTY, of St. Paul, Ramsey county,Minnesota, have invented certain new and useful improvements inl/Vrenehes, of which the following' is a specilication.

My invention relates to wrenches of the quick opening' and closing type;and the object of the invention is to provide improved means to preventthe bur or sleeve which operates the movable jaw from accidentallybecoming unlocked while the wrench is in use.

Other objects of the invention will appear from the following detaileddescription.

The invention consists generally in various constructions andcombinations, all as hereinafter described, and particularly pointed outin the claims.

In the accompanying drawings, forming part of this specification, Figure1 is a sectional view of a wrench embodying my invention. Fig. 2 is atransverse section on the line a' w of Fig. 1. Fig. 3 is a plan view ofthe wrench, showing' the movable jaw locked on the shank.

1n the drawings, 2 represents a flat shank having a head or fixed jaw 3at one end and a removable handle 4 at the other end, secured to theshank in the ordinary way. The shank is in the form of a iiattened barand is provided on one edge with a series of threads 5, similar to thoseusually employed in quick opening and closing wrenches of this type.

6 represents a movable jaw slidably arranged on the shank and providedabove and below the shank with lugs 7, that extend parallel with theshank and have ends 8, that are inwardly turned toward the same. Asleeve 9 is slidably mounted on the shank and provided on one side withinteriorly-arranged threads 10, that are adapted to enter the spacesbetween the threads 5 and lock the sleeve on the shank and at the sametime forcing the movable jaw slightly toward the lixed jaw to clampsecurely the object between them. The sleeve 9 at its inner end isprovided with an annular flange 11, that is adapted to slip in betweenthe end of the movable jaw and the inwardly-turned ends 8 of the lugs 7,and a slight annular depression or groove 12 is preferably provided inthe surface of the sleeve to receive the ends 8 and prevent inwardmovement of the sleeve. The walls of the groove act as guides when thesleeve is revolved.

The periphery of the iiange 11 is provided with a series ofratchet-teeth 13, having rounded faces, as shown in Fig. 2, and a recessor socket 11i: is provided in the movable jaw, wherein a fiat spring 15is inserted. One end of this spring is held in place by a shoulder 1Gand the other end extends out past the iiange 11 and is provided with atlshaped under surface 17 to engage the ratchet-teeth 13 and preventpremature or accidental movement of the sleeve. A pin 18, provided inthe surface of the sleeve, engages the sides of the lugs 7 and limitsthe revolution of the sleeve. l/Vhen the pin engages the lug on theunder side of the shank, as shown in Fig. 2, the sleeve will be unlockedand it and the movable jaw can be adjusted back and forth on the shank,as desired. lhen the pin is revolved to engage the upper lug', thethreads 10 will engage the shank-threads and lock the sleeve and jawfirmly on the shank. The spring engaging the ratchet-teeth will yieldslightly, slipping back and forth over the teeth and allowing the sleeveto be revolved freely when grasped with the lingers, but preventing' itfrom turning when the wrench is in use.

1 claim as my invention- 1. A wrench comprising a flat shank having' alixed head at one end and a series of threads on its edge, a movable jawslidably arranged on said shank and having lugs extending parallel withsaid shank and terminating in inwardly-turned ends, aninteriorly-tlueaded sleeve carried by said shank and engaging the"threads thereof and provided at its inner end with an annular iiangehaving a series of teeth, said flange being adapted to slip into thespace between the end of said movable jaw and the inwardly-turned endsof said lugs, means for limiting' the rotation of said sleeve and aspring having a loop at one end adapted to lit into a socket provided insaid jaw parallel, substantially, with said shank, one end of saidspring projecting out of said socket past said flange and engaging saidteeth, substantially as described.

2. A wrench comprising a iiat shank having a fixed head at one end and aseries of threads on one edge, a movable jaw slidably mounted on saidshank and provided with lugs projecting parallel with said shank andspaced therefrom, said lugs having inwardly-turned ends, a sleeveinteriorly threaded to engage the threads on said shank and providedwith all IOO annular flange at its inner end adapted to slip surface toengage said teeth, and means for into the space between the end of saidlugs and limiting the rotation of said sleeve. IC said movable jaw andhaving a series of pe- In Witness whereof I have hereunto set myripheral teeth, a flat springhavingaloop at one hand this 28th day ofNovember, 1904.

5 end adapted to ltinto a socket provided in said JOHN R. PATTY.

jaw parallel with said shank, one end of said Witnesses: spring'projecting out of said socket past said RICHARD PAUL, annular flange andhaving a V-shaped under C. MARNAMARA.

